From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01740C32772 for ; Mon, 22 Aug 2022 19:24:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238636AbiHVTYO (ORCPT ); Mon, 22 Aug 2022 15:24:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238637AbiHVTWM (ORCPT ); Mon, 22 Aug 2022 15:22:12 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A3A150065 for ; Mon, 22 Aug 2022 12:21:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 4D058B818AB for ; Mon, 22 Aug 2022 19:21:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E28D3C433B5; Mon, 22 Aug 2022 19:21:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1661196097; bh=o6cIEdQAd5u5b8WqRBGbo159N4RirfzmfxOz6MITnPE=; h=Date:To:From:Subject:From; b=AOhMJFemZG08x6Q+kRqT6UwdEqcQXa90SqVx0zyEnWGlEpPBtUHi/xZNpn3KVJmw2 1J4AqHIyBT9Ld3cuq+f/8pJEf1TsoXjOla92y31FPGFr7Lmr7MLxLfxHyQk1vwI5Ut QpzAG1wS1Hl9DBrh3U7VPUBDTqL1xiOrTeGgX5Uw= Date: Mon, 22 Aug 2022 12:21:36 -0700 To: mm-commits@vger.kernel.org, yuzhao@google.com, willy@infradead.org, will@kernel.org, vbabka@suse.cz, svens@linux.ibm.com, sj@kernel.org, dhowells@redhat.com, david@redhat.com, catalin.marinas@arm.com, Liam.Howlett@Oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-mremap-use-vma_find_intersection-instead-of-vma-linked-list.patch added to mm-unstable branch Message-Id: <20220822192136.E28D3C433B5@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm/mremap: use vma_find_intersection() instead of vma linked list has been added to the -mm mm-unstable branch. Its filename is mm-mremap-use-vma_find_intersection-instead-of-vma-linked-list.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mremap-use-vma_find_intersection-instead-of-vma-linked-list.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Liam R. Howlett" Subject: mm/mremap: use vma_find_intersection() instead of vma linked list Date: Mon, 22 Aug 2022 15:06:31 +0000 Link: https://lkml.kernel.org/r/20220822150128.1562046-60-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett Acked-by: Vlastimil Babka Cc: Catalin Marinas Cc: David Hildenbrand Cc: David Howells Cc: "Matthew Wilcox (Oracle)" Cc: SeongJae Park Cc: Sven Schnelle Cc: Will Deacon Cc: Yu Zhao Signed-off-by: Andrew Morton --- mm/mremap.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/mm/mremap.c~mm-mremap-use-vma_find_intersection-instead-of-vma-linked-list +++ a/mm/mremap.c @@ -716,7 +716,7 @@ static unsigned long move_vma(struct vm_ if (excess) { vma->vm_flags |= VM_ACCOUNT; if (split) - vma->vm_next->vm_flags |= VM_ACCOUNT; + find_vma(mm, vma->vm_end)->vm_flags |= VM_ACCOUNT; } return new_addr; @@ -866,9 +866,10 @@ out: static int vma_expandable(struct vm_area_struct *vma, unsigned long delta) { unsigned long end = vma->vm_end + delta; + if (end < vma->vm_end) /* overflow */ return 0; - if (vma->vm_next && vma->vm_next->vm_start < end) /* intersection */ + if (find_vma_intersection(vma->vm_mm, vma->vm_end, end)) return 0; if (get_unmapped_area(NULL, vma->vm_start, end - vma->vm_start, 0, MAP_FIXED) & ~PAGE_MASK) _ Patches currently in -mm which might be from Liam.Howlett@Oracle.com are maple-tree-add-new-data-structure.patch radix-tree-test-suite-add-pr_err-define.patch radix-tree-test-suite-add-kmem_cache_set_non_kernel.patch radix-tree-test-suite-add-allocation-counts-and-size-to-kmem_cache.patch radix-tree-test-suite-add-support-for-slab-bulk-apis.patch radix-tree-test-suite-add-lockdep_is_held-to-header.patch lib-test_maple_tree-add-testing-for-maple-tree.patch mm-start-tracking-vmas-with-maple-tree.patch mm-mmap-use-the-maple-tree-in-find_vma-instead-of-the-rbtree.patch mm-mmap-use-the-maple-tree-for-find_vma_prev-instead-of-the-rbtree.patch mm-mmap-use-maple-tree-for-unmapped_area_topdown.patch kernel-fork-use-maple-tree-for-dup_mmap-during-forking.patch damon-convert-__damon_va_three_regions-to-use-the-vma-iterator.patch mm-remove-rb-tree.patch mmap-change-zeroing-of-maple-tree-in-__vma_adjust.patch xen-use-vma_lookup-in-privcmd_ioctl_mmap.patch mm-optimize-find_exact_vma-to-use-vma_lookup.patch mm-khugepaged-optimize-collapse_pte_mapped_thp-by-using-vma_lookup.patch mm-mmap-change-do_brk_flags-to-expand-existing-vma-and-add-do_brk_munmap.patch mm-use-maple-tree-operations-for-find_vma_intersection.patch mm-mmap-use-advanced-maple-tree-api-for-mmap_region.patch mm-remove-vmacache.patch mm-convert-vma_lookup-to-use-mtree_load.patch mm-mmap-move-mmap_region-below-do_munmap.patch mm-mmap-reorganize-munmap-to-use-maple-states.patch mm-mmap-change-do_brk_munmap-to-use-do_mas_align_munmap.patch arm64-change-elfcore-for_each_mte_vma-to-use-vma-iterator.patch fs-proc-base-use-maple-tree-iterators-in-place-of-linked-list.patch userfaultfd-use-maple-tree-iterator-to-iterate-vmas.patch ipc-shm-use-vma-iterator-instead-of-linked-list.patch bpf-remove-vma-linked-list.patch mm-gup-use-maple-tree-navigation-instead-of-linked-list.patch mm-madvise-use-vma_find-instead-of-vma-linked-list.patch mm-memcontrol-stop-using-mm-highest_vm_end.patch mm-mempolicy-use-vma-iterator-maple-state-instead-of-vma-linked-list.patch mm-mprotect-use-maple-tree-navigation-instead-of-vma-linked-list.patch mm-mremap-use-vma_find_intersection-instead-of-vma-linked-list.patch mm-msync-use-vma_find-instead-of-vma-linked-list.patch mm-oom_kill-use-maple-tree-iterators-instead-of-vma-linked-list.patch mm-swapfile-use-vma-iterator-instead-of-vma-linked-list.patch riscv-use-vma-iterator-for-vdso.patch mm-remove-the-vma-linked-list.patch mm-mmap-drop-range_has_overlap-function.patch mm-mmapc-pass-in-mapping-to-__vma_link_file.patch